Global positioning system
Subtitle: who's tracking you?
By: Leon Gray
Edition: 1st ed.
Series: Ask an expert
Publisher: Gareth Stevens Pub.
Published: 2013
Place of publication: New York
Language: eng
Number of pages: 48
ISBN-13: 9781433986390; 9781433986406
Subjects: Global Positioning System; Juvenile literature; Digital mapping
Other titles: GPS :
Notes: Includes bibliographical references (p. 47) and index.